This last Fall I put in a row of eight Canby raspberry plants- bought from a local, reputable nursery.  This Spring, seven are doing great, but one is WAY behind. It's alive, has 4 or 5 ,1/2-inch leaves and 2 really small shoots breaking the soils surface close by.  Soil is consistent all thru the row, and very good. The others are doing MUCH better- w/ a dozen or more 1-inch-plus leaves, and they LOOK really, really vigorous.  Should I be patient with the one, or just go get another one and replace it with a more vigorous plant.  Thanks for any advice- MJ